Home / 43,528.81-65,293.23-11,939.20

Finding the Fourth Proportional to 43,528.81, 65,293.23 and 11,939.20

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Solution

The fourth proportional to 43,528.81, 65,293.23 and 11,939.20 is: 17,908.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,528.81 : 65,293.23 = 11,939.20 : x
  2. Step 2: Convert to fraction form
    43,528.81/65,293.23 = 11,939.20/x
  3. Step 3: Cross multiply
    43,528.81x = 65,293.23 × 11,939.20
  4. Step 4: Simplify right side
    43,528.81x = 779,548,931.62
  5. Step 5: Solve for x
    x = 779,548,931.62/43,528.81
  6. Step 6: Final answer
    x = 17,908.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.